(187) باب إِخْفَاءِ التَّشَهُّدِ
Narrated Abdullah ibn Mas'ud:
It pertains to the sunnah to utter the tashahhud quietly. (TR)
Reference (TR): Sunan Abi Dawud 986 (TR)
In-book reference (TR): Book 2, Hadith 597 (TR)
English translation (TR): Book 3, Hadith 981 (TR)